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package servlets.friends;

import beans.user.UserBean;
import database.Database;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Stephen'sSSD
 */
public class AutoFillFriendsServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        String param = request.getParameter("param");
        param = "%" + param + "%";
        Connection c = Database.getConnection();
        UserBean user = (UserBean) request.getSession().getAttribute("userBean");
        if (c != null) {
            try {
                PreparedStatement s = c.prepareStatement("SELECT id, email, name FROM user WHERE email LIKE ? or name LIKE ? ");
                s.setString(1, param);
                s.setString(2, param);
                ResultSet rs = s.executeQuery();
                String code = "";
                try {
                    out.println("<div id='foundFriends'>");
                    while (rs.next()) {
                        if (rs.getInt("id") != user.getId() || isFriend()) {
                           code += ("<span class='foundFriend' onclick='addFriend(" + rs.getInt("id") + ")' >Email: " + rs.getString("email") + " Name: " + rs.getString("name") + "</span>");
                        }
                    }
                } finally {
                    if(code.equals("")){
                        code = "No Users Found...";
                    }
                    out.println(code);
                    out.println("</div>");
                    out.close();
                }
            } catch (SQLException ex) {
                //Logger.getLogger(AutoFillFriendsServlet.class.getName()).log(Level.SEVERE, null, ex);
            }
        }

    }
    boolean isFriend(){ //IMPLEMENT LATER
        return false;
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
